Coupling for tractors



June 29 1926.

E. Y. SCOTT COUPLING FOR TRACTORS Filed April 29, 1925 /v .NRS Wm/4 WM QY 3|k A /J is rotatable therein. The outer end of the core normallybears against the lead plate and a link or draw-bar 17 projects throughl be pulled against the spring 10 and the the aperture of the lead plateinto the core .or bushing and it is secured t0 the said core or bushingin any suitable manner, as by a cross pin 18. The draw-.bar with thebushing is rotatable in the tubular member and this affords a flexibleconnection between the draft rigging 19 of a tractor or the like and thetongue of the load, which permits the tongue to rotate or partiallyrotate independentlyv of the movement of the tractor and it will, ofcourse, permit the tractor to tilt without imparting strain to thetongue. p

' It will be apparent from an inspection of the drawing that as a pullis exerted on the draft bar, the core or bushing will be drawn intoengagement with the plate 12, and .through the rods 13 the followerplate will spring will be compressed. Should the load encounter anobstruction and be temporarily arrested, the spring will yield tocushion the effect of the arrested load, as has been explained.

I claim: v

1. In a coupling for tractors, a tubular member adapted to be attachedto the tongue of a load, a spring encircling the tubular member near itsend, an abutment for the outer end of the spring, a follower plate onthe tubularV member engaging the rear end Y of the spring, a lead plate,connections between the follower plate vand the lead plate whereby thetension of the spring holds the lead plate in engagement with. the outerend of the ytubular member, an element within the tubular member bearingagainst the lead plate, and a draw-bar extending through the lead lateand connected to the last mentione element.

2. In a coupling for tract-ors, a tubular spring, a lead plate in frontof the tubularmember, means for connecting the leadvplate and thefollower plate whereby tension of the spring holds the lead plateagainst the end of the tubular member, an el-ement within the tubularmember bearing against the lead plate, and a draw-bar extending throughthe lead plate and connected'to the last mentioned element. A i "3. In acoupling for tractors, ay tubular member adapted to beattached to thetongue yof aload, va spring encircling the tubular member near its end,anV abutment for the youter end of the spring, a follower plate on thetubular member engaging the rear end of the spring, aI lead platebearing against nection between the follower plate and the llead plateof less length than the spring EMMITT Y. SCOTT.

the outer end of the tubular member, con-

